Combination-tool



(No Model.)

E. O. DUBAND. COMBINATION TOOL.

Nb. 496,300.. Patented Apr. 25, 1893.

NITED STATES PATENT OFFICE,

EDWIN C. DURAND, WELLINGTON, OHIO.

COMBINATION-TOOL.

SPECIFICATION forming part of Letters Patent No. 496,300, dated April25, 18 93.

Application filed December 3, 1892- Serial No. 453,943. (No model.)

To all whom it may concern:

Be it known that I, EDWIN O. DURAND, a citizen of the United States,residing at Wellington, in the county of Lorain and State of Ohio, haveinvented certain new and useful Improvements in a-glombined Level,Plumb, and Inclinometer, of which the following is a specification.

This invention relates to the class of measuring instruments andparticularly to a combined pitch-board, level, and indicator, and itsnovelty will be fully understood from the following description andclaims, when taken in connection with the annexed drawings, and theobject of the inventiop is to provide an inclinometer, level, plumb, andindicator all in one.

A further object of the invention is to provide a combined level, plumb,incliuometer and indicator, with a dial adjusting mechanism which can beoperated without displacing or separating the parts of the level orboard.

In the accompanying drawings forming part of this application: Figure 1is a perspective view of my combined ifistrumeut. Fig. 2 isa crosssection taken on the line oc:r, Fig. 1. Fig. 3 isa perspective viewlooking at the rear of the instrument. Fig. 4 is a front view, with the"dial, disk and indicator hand removed. Fig. 5 is a front view of thedial and disk. Fig. 6 is a perspective view of the pendulum, pin,indicator hands, steel bushing and pin nut.

The same reference numerals denote the same parts throughout the severalfigures.

The body 1 of the instrument I prefer to make of block wood of anyconvenient size, or it may be made in box form. The body 1 is groovedout or counter-sunk in circular form, having a central cavity 2surrounding a centralaperture 3. In this cavity 2 is placed a metallicscrew-thread bushing 4, through or into which is screwed from the backof the instrument, an arbor 5 having an extension or pin 6. This pin 6,is made of hardened steel, and upon it is hung the pendulum '7.

The hub 20 of the pendulum has an internal bushing 8 also of hardenedsteel, in which the pin 6 is journaled, and secured by means of a thinnut 9.

Extending partway through the wooden block or frame 1, from the rear, isan adj usting rod 10, having a hand operating device 22, and providedwith a pinion 11 secured upon its inner end. This pinion 11 engages asegmental tooth portion 12, of the dial 13, said dial having two sets ofdegree marking upon its face. The dial is secu red to a disk 14, bymeans of an eyelet hole 15 in the center, leaving a space 16 between thedisk and the dial.

There is a shoulder 17 formed in the counfer-sunk portion of the block1, upon which the disk 14 rests, said resting place or shoulder beingbehind the pinion 11; thesaid disk has a cut out 18, to allow the saidpinion to pass and engage the toothed portion 12 of the dial 13.

The space 16 between the dial and disk, allows the dial to be moved, oradjusted, should any irregularity occur in the instrument, by turningthe rod 10 by means of the hand piece 22, in either direction, withoutits touching, or the disk.

The space 19 between the shoulder 17 and the inside back of thecounter-sink allows free play of the pendulum.

The hub 20 of the pendulum in which the steel bushing is located extendsclear through the eyelet holes of the disk and dial without touchingthem and has secured upon its end an indicator hand 21, thus leaving thependulum and indicator hand firmly secured together, and perfectly freeto vibrate together.

The dial is covered by a glass disk 23 in the usual manner.

24, denotes a piece of wire sprung into the counter sink on top of thedial, so as to hold it firmly in place, and upon which the glass diskrests.

The large circle of degree markings on the dial indicates half inch tothe foot, while in the smaller circle each marking indicates fivedegrees.

It will be observed that the instrument may be employed by changing itsposition, as a level, plumb, or indicator.

I do not wish to be understood as limiting myself to any particular formof base or frame nor to the material of which said frame or any of theparts of my instruments are made, as the same may be changed withoutdeparting from the spirit of my invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In an inclinonneter, the disk secured therein, the dial looselyconnected to the disk and having a segmental toothed portion, and thepinion engaging said toothed portion, whereby the dial is adjusted, asset forth.

2. The body 1, having a counter-sunk portion in which is secured theadjusting rod and pinion, in combination with said rod and pinion, thedisk also secured in the said portion, and the dial pivotally connectedto the disk and having teeth engaged by the pin- EDNVIN C. DURAND.

Witnesses:

J. H. DIOKSON, II. M. DURAND.

